Apple.com-optimize-mac.xyz is a malicious pop-up that attacks many computers today that run on Mac OS X. Even though the pop-up uses the logo of Apple company, the alert is not related to Apple at all. Instead, there are specific frauds who stand behind this alert and they aim to force you to download and install specific rogue security software. We believe that you should be very careful when you encounter these pop-ups. They are powered by certain nasty adware enabled in your system. Follow this guide to get your device properly fixed automatically.